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Windows 7: Windows 7 Won't Recognize 4TB Hard Drive

I had a hard drive which I wanted to reformat. So I back it up and went did a "quick format" on it.

At that point my 4tb which showed 3.6tb reformated to 1.63tb.

When I go into disk management Windows which previously saw 3.6 of 4tb only sees 1.63tb.

So I started over from scratch.

I deleted the volume, initialized the disk to GPT and but still all it sees is 1.63.

I have two storage drives on this computer and my other storage drive is recognized as 5.45tb on a 6tb drive, so it's not an issue of Windows not being able to recognize the drives.

It's not that it's not formatted properly as it is initialized to GPT.

Out of curiosity I went into Linux with a live usb stick and used GParted. I was able to see the full allocation on the disk and I formatted it in Linux.

Upon exiting Linux and going back into Windows, NOW Windows shows me the full 3.6 capacity. However other partition managers like Easeus, or MiniToolPartion now report 122% capacity .

I figured I could just use it since Linux seem to get it formatted correctly, however since it will be used for storage I was a bit nervous and still don't understand why Windows which once allowed it to be formatted correctly won't let t.

I also checked the drive with the SMARTS tools by Western Digital and they found the drive fine and report 4.0 as the capacity for the drive.

I thought perhaps a driver issue, but it just then the other drive is fine and so was this one previously.

Zip file I downloaded. I'm not sure which one. I just downloaded the pack, then I went to device manager and under storage controller, I let Windows search the file for the best driver. After it rebooted twice it showed me the entire disc to format.

It appears the new drivers are:

jaStorA.sys and jaStorF.sys

At least those are the things that are different after I did this.

So if anyone else has a similar problem, don't rule out driver, even if Intel tells you you're up to date.

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